10
8.3 Restore the factory setting (reset)
►
Press [
] for at least 15 s�
> LED 9 lights, after approx� 5 s it flashes�
> After approx� 15 s LEDs 0���9 flash orange�
►
Release [
]�
> All settings are reset to the factory setting:
-operating area: 5 ���100 cm/s for water
-switch point: LED 7
-output function: NO
-unlocked�
8.4 Lock / unlock the unit
The unit can be locked electronically to prevent unintentional settings�
►
Press both setting pushbuttons simultaneously for at least 10 s in the operating
mode�
> The indication goes out, the unit locks or unlocks�
On delivery: unlocked�
8.5 Remote adjustment
You can adapt the unit to new flow conditions any time�
• Apply the operating voltage for > 5 ��� < 10 s to Pin 2 = high flow adjustment�
• Apply the operating voltage for > 10 ��� < 15 s to Pin 2 = low flow adjustment�
This adjustment does not affect the switch point (the relative position is not chan-
ged)�
9 Troubleshooting
If no adjustment is possible, all LEDs flash red� The unit then passes into the
operating mode with unchanged values�
Possible cause
aid
Error during installation�
►
Read chapter
�
Check whether all requirements have
been met�
The difference between maximum flow and
minimum flow is too small�
►
Increase the flow difference and carry
out the adjustment once again�
The sequence high flow /low flow adjust-
ment was not adhered to�
►
Carry out the two adjustment operations
again in the right sequence�